D2 P0174 code
- Thread starter bean
- Start date
depending on the P0174…
DTC P0174
Additive adaptive mixture correction TRA bank 2 Drive cycle B:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ Air leak between MAFS and inlet manifold (high TRA).
^ Air leak in inlet manifold (high TRA).
^ MAF sensor inaccurate.
^ Fuel leak in one injector (low TRA).
^ Part load breather pipe.
Air Leak Between MAFS And Inlet Manifold (high TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA also abnormally high on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on the vehicle.
POSSIBLE FAULTS
^ Air leak near to MAFS.
^ Air leak near to IACV.
^ Air leak near to throttle body.
DIAGNOSTIC HINTS
^ If TRA adaption is normal on bank A (left) the problem is not an air leak.
^ Misfire, oxygen sensor or catalyst faults could give a false indication of an air leak fault.
Air Leak In Inlet Manifold (high TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA also abnormally high on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on the vehicle.
POSSIBLE FAULTS
^ Air leak in inlet manifold gaskets or seals.
^ Porous inlet manifold casting (especially on new manifolds).
^ Air leak around injector or spark plug seals.
^ Air leak in injector or spark plug.
DIAGNOSTIC HINTS
^ If TRA adaption is normal on bank A (left) the problem is not an air leak.
^ Misfire, oxygen sensor or catalyst faults could give a false indication of an air leak fault.
MAF Sensor Inaccurate.
CHECK THE FOLLOWING:
^ Fuelling adaption TRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ MAF sensor is functioning but inaccurate.
DIAGNOSTIC SUGGESTIONS
^ Renew MAFS or test by substitution with known good unit.
Fuel Leak In One Injector (low TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA is slightly reduced or normal on bank A (left) and reduced on bank B (right).
^ There are no misfire faults set on bank B (right) the vehicle.
^ There are no oxygen sensor or catalyst faults set on bank B (right).
POSSIBLE FAULTS
^ Continuous fuel seepage in one injector.
DIAGNOSTIC HINTS
^ Misfire, oxygen sensor or catalyst faults could give a false indication of a fuel leak fault.
^ Look for evidence of the fuel leak (excess fuel present in cylinder)
^ Fit a pressure gauge to the fuel rail and check that the fuel pressure does not die away quickly when the ignition is switched off (indicating a leak).
Part Load Breather Pipe.
CHECK THE FOLLOWING:
^ Part load breather pipe connections.
^ State of the part load breather pipe for cracks etc.
DTC P0174
Additive adaptive mixture correction TRA bank 2 Drive cycle B:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ Air leak between MAFS and inlet manifold (high TRA).
^ Air leak in inlet manifold (high TRA).
^ MAF sensor inaccurate.
^ Fuel leak in one injector (low TRA).
^ Part load breather pipe.
Air Leak Between MAFS And Inlet Manifold (high TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA also abnormally high on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on the vehicle.
POSSIBLE FAULTS
^ Air leak near to MAFS.
^ Air leak near to IACV.
^ Air leak near to throttle body.
DIAGNOSTIC HINTS
^ If TRA adaption is normal on bank A (left) the problem is not an air leak.
^ Misfire, oxygen sensor or catalyst faults could give a false indication of an air leak fault.
Air Leak In Inlet Manifold (high TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA also abnormally high on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on the vehicle.
POSSIBLE FAULTS
^ Air leak in inlet manifold gaskets or seals.
^ Porous inlet manifold casting (especially on new manifolds).
^ Air leak around injector or spark plug seals.
^ Air leak in injector or spark plug.
DIAGNOSTIC HINTS
^ If TRA adaption is normal on bank A (left) the problem is not an air leak.
^ Misfire, oxygen sensor or catalyst faults could give a false indication of an air leak fault.
MAF Sensor Inaccurate.
CHECK THE FOLLOWING:
^ Fuelling adaption TRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ MAF sensor is functioning but inaccurate.
DIAGNOSTIC SUGGESTIONS
^ Renew MAFS or test by substitution with known good unit.
Fuel Leak In One Injector (low TRA).
CHECK THE FOLLOWING:
^ Fuelling adaption TRA is slightly reduced or normal on bank A (left) and reduced on bank B (right).
^ There are no misfire faults set on bank B (right) the vehicle.
^ There are no oxygen sensor or catalyst faults set on bank B (right).
POSSIBLE FAULTS
^ Continuous fuel seepage in one injector.
DIAGNOSTIC HINTS
^ Misfire, oxygen sensor or catalyst faults could give a false indication of a fuel leak fault.
^ Look for evidence of the fuel leak (excess fuel present in cylinder)
^ Fit a pressure gauge to the fuel rail and check that the fuel pressure does not die away quickly when the ignition is switched off (indicating a leak).
Part Load Breather Pipe.
CHECK THE FOLLOWING:
^ Part load breather pipe connections.
^ State of the part load breather pipe for cracks etc.
DTC P0174
Mixture adaption factor FRA bank 2 Drive cycle C:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ Faulty injector (Low or high flow).
^ Fuel pressure regulator fault - pressure incorrect.
^ MAF sensor inaccurate.
^ Fuel pump fault - flow too low.
^ Part load breather pipe.
Faulty Injector (Low Or High Flow).
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is normal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on bank B (right).
^ Check Engine Roughness and misfire counts. Is one cylinder different from the others?
POSSIBLE FAULTS
^ Fuel injector flow rate too low (one injector bank B).
^ Fuel injector flow rate too high (one injector bank B).
DIAGNOSTIC SUGGESTIONS
^ Renew or temporarily substitute injector for any cylinder with abnormal engine roughness or misfire counts.
^ Renew or temporarily substitute all injectors for bank B.
^ Swap injectors with injectors from the opposite bank to see if fault can be transferred to opposite bank.
Fuel Pressure Regulator Fault - Pressure Incorrect.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ Fuel pressure too low (high FRA adaption).
^ Fuel pressure too high (low FRA adaption).
DIAGNOSTIC SUGGESTIONS
^ Fit fuel pressure gauge and measure fuel pressure.
MAF Sensor Inaccurate.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
^ Fuel pressure (measured with pressure gauge) is correct.
POSSIBLE FAULTS
^ MAF sensor is functioning but inaccurate.
DIAGNOSTIC HINTS
^ Renew MAFS or test by substitution with known good unit.
Fuel Pump Fault - Flow Too Low.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is abnormally high on both banks.
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ Fuel pressure too low at high engine power due to poor fuel pump flow.
DIAGNOSTIC SUGGESTIONS
^ Fit fuel pressure gauge and measure fuel pressure during driving at high engine revs.
Part Load Breather Pipe.
CHECK THE FOLLOWING:
^ Part load breather pipe connections.
^ State of the part load breather pipe for cracks etc.
Mixture adaption factor FRA bank 2 Drive cycle C:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ Faulty injector (Low or high flow).
^ Fuel pressure regulator fault - pressure incorrect.
^ MAF sensor inaccurate.
^ Fuel pump fault - flow too low.
^ Part load breather pipe.
Faulty Injector (Low Or High Flow).
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is normal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set on bank B (right).
^ Check Engine Roughness and misfire counts. Is one cylinder different from the others?
POSSIBLE FAULTS
^ Fuel injector flow rate too low (one injector bank B).
^ Fuel injector flow rate too high (one injector bank B).
DIAGNOSTIC SUGGESTIONS
^ Renew or temporarily substitute injector for any cylinder with abnormal engine roughness or misfire counts.
^ Renew or temporarily substitute all injectors for bank B.
^ Swap injectors with injectors from the opposite bank to see if fault can be transferred to opposite bank.
Fuel Pressure Regulator Fault - Pressure Incorrect.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ Fuel pressure too low (high FRA adaption).
^ Fuel pressure too high (low FRA adaption).
DIAGNOSTIC SUGGESTIONS
^ Fit fuel pressure gauge and measure fuel pressure.
MAF Sensor Inaccurate.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is also abnormal on bank A (left).
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
^ Fuel pressure (measured with pressure gauge) is correct.
POSSIBLE FAULTS
^ MAF sensor is functioning but inaccurate.
DIAGNOSTIC HINTS
^ Renew MAFS or test by substitution with known good unit.
Fuel Pump Fault - Flow Too Low.
CHECK THE FOLLOWING:
^ Fuelling adaption FRA is abnormally high on both banks.
^ There are no misfire faults set on the vehicle.
^ There are no oxygen sensor or catalyst faults set.
POSSIBLE FAULTS
^ Fuel pressure too low at high engine power due to poor fuel pump flow.
DIAGNOSTIC SUGGESTIONS
^ Fit fuel pressure gauge and measure fuel pressure during driving at high engine revs.
Part Load Breather Pipe.
CHECK THE FOLLOWING:
^ Part load breather pipe connections.
^ State of the part load breather pipe for cracks etc.
do you have a scan tool so you can read the oxygen sensor voltages?
do you know what the long term fuel trim is for each bank?
do you know what the long term fuel trim is for each bank?
Checked for air leaks from MAF to throttle body. reseated and tightened clamps. No leaks I can find. Cleared code and restarted. P0174 is gone. No service engine light but now I have a new set of codes. P1884, P0154, P0102.
No scan tool available, don't know fuel trim. Bad MAF and O2 sensor?
No scan tool available, don't know fuel trim. Bad MAF and O2 sensor?
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=0 type=hidden></INPUT>
<MAP id=imgMap_1 name=imgMap_1><AREA href="javascript:navigateOnTree('/alldata/','3926','426','3871288','37302');" shape=RECT coords=17,76,48,94></MAP></TD></TR></TBODY></TABLE>
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=1 type=hidden></INPUT>
<MAP id=imgMap_2 name=imgMap_2><AREA href="javascript:navigateOnTree('/alldata/','3926','426','3871288','37302');" shape=RECT coords=21,137,51,155></MAP></TD></TR></TBODY></TABLE>
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=2 type=hidden></INPUT>
<MAP id=imgMap_3 name=imgMap_3><AREA href="javascript:navigateOnTree('/alldata/','3926','426','3871288','37302');" shape=RECT coords=20,189,46,196></MAP></TD></TR></TBODY></TABLE>
DTC P0150
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal implausible.
DTC P0152
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal out of range - above maximum.
DTC P0154
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal missing.
Possible causes by suggested order of priority:
^ Oxygen sensor heater not functioning correctly.
^ Open circuit C635/16 (U) to C645/2 (U).
^ Open circuit C635/10 (RB) to C645/1 (RB).
^ Connector(s) C645,ECM C635 (B).
^ Oxygen sensor damaged or surface contaminated.
Oxygen Sensor Heater Not Functioning Correctly.
CHECK THE FOLLOWING:
^ Oxygen sensor heater fault flags are set.
INFORMATION
^ If the oxygen sensor is not at the correct operating temperature the sensor may appear faulty to the motronic diagnostics system. This fault should be diagnosed by exploring the oxygen sensor heater faults which will be set if this fault is present.
Open Circuit C635/16 (U) to C645/2 (U).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Open Circuit C635/10 (RB) to C645/1 (RB).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Connector(s) C645,ECM C635 (B).
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.
Oxygen Sensor Damaged Or Surface Contaminated.
CHECK THE FOLLOWING:
^ Remove the oxygen sensor and examine the side internal to the exhaust system and the side outside the exhaust system. Both sides of the sensor should be free from contamination. Gas must be able to be absorbed by both sides of the sensor.
^ Also check the sensor for any mechanical damage or cracks.
INFORMATION
^ If the oxygen sensor shows signs of damage or contamination that cannot be cleaned it should be renewed.
Zoom and Print Options
<INPUT id=viewImage value=0 type=hidden></INPUT>
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=1 type=hidden></INPUT>
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=2 type=hidden></INPUT>
DTC P0150
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal implausible.
DTC P0152
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal out of range - above maximum.
DTC P0154
Lambda sensor upstream catalyst bank 2 Drive cycle C:Signal missing.
Possible causes by suggested order of priority:
^ Oxygen sensor heater not functioning correctly.
^ Open circuit C635/16 (U) to C645/2 (U).
^ Open circuit C635/10 (RB) to C645/1 (RB).
^ Connector(s) C645,ECM C635 (B).
^ Oxygen sensor damaged or surface contaminated.
Oxygen Sensor Heater Not Functioning Correctly.
CHECK THE FOLLOWING:
^ Oxygen sensor heater fault flags are set.
INFORMATION
^ If the oxygen sensor is not at the correct operating temperature the sensor may appear faulty to the motronic diagnostics system. This fault should be diagnosed by exploring the oxygen sensor heater faults which will be set if this fault is present.
Open Circuit C635/16 (U) to C645/2 (U).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Open Circuit C635/10 (RB) to C645/1 (RB).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Connector(s) C645,ECM C635 (B).
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.
Oxygen Sensor Damaged Or Surface Contaminated.
CHECK THE FOLLOWING:
^ Remove the oxygen sensor and examine the side internal to the exhaust system and the side outside the exhaust system. Both sides of the sensor should be free from contamination. Gas must be able to be absorbed by both sides of the sensor.
^ Also check the sensor for any mechanical damage or cracks.
INFORMATION
^ If the oxygen sensor shows signs of damage or contamination that cannot be cleaned it should be renewed.
<!-- Concealed note: rwk_1265 jc start eu -->
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=0 type=hidden></INPUT>
<MAP id=imgMap_1 name=imgMap_1><AREA href="javascript:navigateOnTree('/alldata/','3926','426','3906554','37302');" shape=RECT coords=12,72,64,90></MAP></TD></TR></TBODY></TABLE>
NOTE: The MAF sensor is a combined MAF sensor and IAT sensor.
<!-- Concealed note: rwk_1265 jc end eu -->
DTC P0102
Mass air flow sensor fault Drive cycle A:Signal out of range - below minimum.
DTC P0103
Mass air flow sensor fault Drive cycle A:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ MAFS contaminated.
^ Open circuit - C636/23 (UG) to C149/5 (UG).
^ Open circuit - C636/9 (RB) to C149/3 (RB).
^ 5V MAFS supply voltage C149/4 (R) to C149/3 (RB).
^ 12V MAFS supply voltage C149/2 (NK) to C149/3 (RB).
^ Connectors C149, ECM C636 (B).
^ Fuse F2 Engine Compartment Fusebox.
^ MAFS faulty.
MAFS Contaminated.
CHECK THE FOLLOWING:
^ Visually inspect the metal and plastic mesh on the upstream side of the airflow meter.
NOTE: If this mesh is contaminated then this is a good indication that the sensor film is also contaminated.
POSSIBLE FAULTS
^ MAFS Fault - Contaminated hot film sensor.
Open Circuit - C636/23 (UG) to C149/5 (UG).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Open Circuit - C636/9 (RB) to C149/3 (RB).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
5V MAFS Supply Voltage C149/4 (R) to C149/3 (RB).
CHECK THE FOLLOWING:
^ 5V MAFS supply voltage C149/4 (R) to C149/3 (RB)..
ACCEPTABLE RESULTS
^ Between 4.5V and 5.5V.
DIAGNOSTIC HINTS
^ If the voltage is too high a short circuit to battery or faulty ECM should be suspected.
^ If the voltage is too low an open circuit or connector problem should be suspected.
12V MAFS Supply Voltage C149/2 (NK) to C149/3 (RB).
CHECK THE FOLLOWING:
^ 12V MAFS supply voltage C149/2 (NK) to C149/3 (RB).
ACCEPTABLE RESULTS
^ Between 11.5V and 15.0V.
DIAGNOSTIC HINTS
^ If the voltage is not present check F2 Engine Compartment Fusebox and open circuit C149/2 (NK) to C570/5 (NK).
Connectors C149, ECM C636 (B).
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.
Fuse F2 Engine Compartment Fusebox.
POWER_DISTRIBUTION
^ Check for fuse not correctly inserted, fuse blown, fuse connections loose, damaged or corroded.
^ Certain diagnostics may also perform further checks to try and narrow down the fault, e.g. check if other circuits fed by the same fuse are also experiencing problems.
MAFS Faulty.
CHECK THE FOLLOWING:
^ Check MAFS by substituting with known good unit.
POSSIBLE FAULTS
^ MAFS Fault.
<TABLE><TBODY><TR><TD class=article_container>
Zoom and Print Options
<INPUT id=viewImage value=0 type=hidden></INPUT>
NOTE: The MAF sensor is a combined MAF sensor and IAT sensor.
<!-- Concealed note: rwk_1265 jc end eu -->
DTC P0102
Mass air flow sensor fault Drive cycle A:Signal out of range - below minimum.
DTC P0103
Mass air flow sensor fault Drive cycle A:Signal out of range - above maximum.
Possible causes by suggested order of priority:
^ MAFS contaminated.
^ Open circuit - C636/23 (UG) to C149/5 (UG).
^ Open circuit - C636/9 (RB) to C149/3 (RB).
^ 5V MAFS supply voltage C149/4 (R) to C149/3 (RB).
^ 12V MAFS supply voltage C149/2 (NK) to C149/3 (RB).
^ Connectors C149, ECM C636 (B).
^ Fuse F2 Engine Compartment Fusebox.
^ MAFS faulty.
MAFS Contaminated.
CHECK THE FOLLOWING:
^ Visually inspect the metal and plastic mesh on the upstream side of the airflow meter.
NOTE: If this mesh is contaminated then this is a good indication that the sensor film is also contaminated.
POSSIBLE FAULTS
^ MAFS Fault - Contaminated hot film sensor.
Open Circuit - C636/23 (UG) to C149/5 (UG).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
Open Circuit - C636/9 (RB) to C149/3 (RB).
OPEN_CIRCUIT
^ Check resistance > 1M Ohm
5V MAFS Supply Voltage C149/4 (R) to C149/3 (RB).
CHECK THE FOLLOWING:
^ 5V MAFS supply voltage C149/4 (R) to C149/3 (RB)..
ACCEPTABLE RESULTS
^ Between 4.5V and 5.5V.
DIAGNOSTIC HINTS
^ If the voltage is too high a short circuit to battery or faulty ECM should be suspected.
^ If the voltage is too low an open circuit or connector problem should be suspected.
12V MAFS Supply Voltage C149/2 (NK) to C149/3 (RB).
CHECK THE FOLLOWING:
^ 12V MAFS supply voltage C149/2 (NK) to C149/3 (RB).
ACCEPTABLE RESULTS
^ Between 11.5V and 15.0V.
DIAGNOSTIC HINTS
^ If the voltage is not present check F2 Engine Compartment Fusebox and open circuit C149/2 (NK) to C570/5 (NK).
Connectors C149, ECM C636 (B).
CONNECTOR
^ Check for connector not correctly latched, backed out pins, damaged pins, corroded pins.
Fuse F2 Engine Compartment Fusebox.
POWER_DISTRIBUTION
^ Check for fuse not correctly inserted, fuse blown, fuse connections loose, damaged or corroded.
^ Certain diagnostics may also perform further checks to try and narrow down the fault, e.g. check if other circuits fed by the same fuse are also experiencing problems.
MAFS Faulty.
CHECK THE FOLLOWING:
^ Check MAFS by substituting with known good unit.
POSSIBLE FAULTS
^ MAFS Fault.
usually a transmission fault (p1884) plus an air mass meter or fuel trim fault means a mass air meter.
if you had a way of looking at your MAF reading you'd be able to make sure. should be around 8 g/s at idle with no accessories on.
if you had a way of looking at your MAF reading you'd be able to make sure. should be around 8 g/s at idle with no accessories on.
Alldata. We used to spend a lot of money subscribing to the manufacturers tech info intranets but Alldata takes all the manufacturers info and puts in their user interface. Alldata used to be okay, but now it is pretty amazing. $150 per month.
Last edited:
Before you take my or anyone else's advice over the inter webs pick up an economical scanner. You need one owing a rover anyways.
YOU need to be able to read values to better diagnose issues. Most decent OBD scanners can give you air mass readings, coolant temp, oxygen sensor voltage, etc. shit you may have a breather hose that collapsed causing too much volume thru the other one, you never know without physically being in front of the vehicle.
If you have any vw or audi friends see if they have a vag com, it will give you all the inputs you need to look at in OBD mode.
It looks like most of the charts come from Land Rover's Bosch manual:
http://landroverforums.com/forum/discovery-ii-18/d2-engine-computer-manuals-48009/#post446431
a friend of mine uses this on his bmw's http://gopoint-technology.mybigcommerce.com/gopoint-bt1-for-apple/
Mike,
MAF had failed … no signal. Both upstream O2 sensors bad. One had failed, other was on the way down [heater]. Replaced MAF and O2 sensors. Codes cleared including the P1884. Looking for a reasonably priced scanner program that works with the BT1 bluetooth transmitter you mentioned.
Thanks very much for the help.
MAF had failed … no signal. Both upstream O2 sensors bad. One had failed, other was on the way down [heater]. Replaced MAF and O2 sensors. Codes cleared including the P1884. Looking for a reasonably priced scanner program that works with the BT1 bluetooth transmitter you mentioned.
Thanks very much for the help.